20197616972

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{349}}^1\times {\mathrm{3851}}^1$

素因数の和:4251

約数の個数: 72

約数和(自身を含む): 40561945200

約数和(自身を除く): 20364328228

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 289, 349, 442, 578, 698, 884, 1156, 1396, 3757, 3851, 4537, 5933, 7514, 7702, 9074, 11866, 15028, 15404, 18148, 23732, 50063, 65467, 77129, 100126, 100861, 130934, 154258, 200252, 201722, 261868, 308516, 403444, 851071, 1112939, 1311193, 1343999, 1702142, 2225878, 2622386, 2687998, 3404284, 4451756, 5244772, 5375996, 14468207, 17471987, 22847983, 28936414, 34943974, 45695966, 57872828, 69887948, 91391932, 297023779, 388415711, 594047558, 776831422, 1188095116, 1553662844, 5049404243, 10098808486, 20197616972]

約数ペア:

[(1, 20197616972), (2, 10098808486), (4, 5049404243), (13, 1553662844), (17, 1188095116), (26, 776831422), (34, 594047558), (52, 388415711), (68, 297023779), (221, 91391932), (289, 69887948), (349, 57872828), (442, 45695966), (578, 34943974), (698, 28936414), (884, 22847983), (1156, 17471987), (1396, 14468207), (3757, 5375996), (3851, 5244772), (4537, 4451756), (5933, 3404284), (7514, 2687998), (7702, 2622386), (9074, 2225878), (11866, 1702142), (15028, 1343999), (15404, 1311193), (18148, 1112939), (23732, 851071), (50063, 403444), (65467, 308516), (77129, 261868), (100126, 201722), (100861, 200252), (130934, 154258)]